Several Naga civil society groups had earlier urged that there should not be polls before the final peace deal since they fear this would delay the process.
The Naga Hoho, apex body of all Naga Tribes, had even threatened poll boycott.
The 60-member Nagaland assembly would go to polls on February 27 along with Meghalaya and results would be declared on March 3.
"The decision taken by the GoI/Election Commission of India to hold election is bound to undermine the progress of the ongoing talks between NSCN and Government of India, and become a serious obstacle towards finding an early political solution. Imposition of such an election is not acceptable to the Nagas who are for an early negotiated political settlement," a statement issued by the NSCN(IM) today, stated.
Earlier this month, the working committee of six Naga National Political Groups other than the NSCN(IM) had also called for putting the elections on hold till there is a final solution of the peace deal.
In August 2015, the centre and the NSCN(IM) had signed the framework agreement that had set the modalities for a final solution to the Naga peace process.
Follow NDTV for latest election news and live coverage of assembly elections 2019 in Maharashtra and Haryana.
Subscribe to our YouTube channel, like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.